EP3011574B1 - Refrigeration appliance having an electrical capacitor - Google Patents

Description

The present invention relates to a refrigeration device with a receiving housing in which an electrical capacitor is inserted.

The pamphlet DE 10 2011 004 594 A1 relates to a refrigeration device with a compressor and an electrical capacitor assigned to the compressor. There is an oil in the condenser which expands when the condenser heats up. If the capacitor heats up too much, a conductive connection arranged in the interior of the capacitor is severed during expansion, so that the capacitor is disconnected from a power source and does not heat up any further. The capacitor is arranged in a housing in which it is fastened on its cordless side with a thread. In the event of a defect, the capacitor expands on the opposite side of the cable from which the cable for the electrical operation of the capacitor is arranged. A free space is therefore provided in the housing for a cable loop on the cable side of the capacitor. The cable loop is required so that the capacitor can expand without hindrance in the event of a fault. This cable loop is laid by the employee during assembly on the assembly line and increases production costs.

JP S53 15034 U8 discloses in the figures an electrical component which has a housing and electrical connections.

DE 101 05 863 C1 discloses a capacitor with a can housing comprising an outer can which is sealed by a closure member. Inside the outer cup there is an inner cup that accommodates a capacitor winding in a space filled with oil.

The object on which the invention is based is to provide a refrigeration device in which the cost of materials is reduced and the assembly process in production is rationalized.

This object is achieved by the subject matter with the features according to the independent claim. Advantageous embodiments of the invention are the subject matter of the figures, the description and the dependent claims.

According to one aspect of the invention, the object is achieved by a refrigeration device with a housing in which an electrical capacitor for limiting a starting current of a compressor is inserted, which has a cable side and a cordless side, in which the housing has a free space for expansion of the capacitor the wireless side of the capacitor. The capacitor is used, for example, to limit the starting current of a compressor. This achieves the technical advantage, for example, that a cable loop to compensate for an expansion of the capacitor in the interior of the receiving housing can be dispensed with, so that the cost of materials is reduced and assembly is simplified.

A refrigeration device is understood in particular to be a household refrigeration device, i.e. a refrigeration device that is used for housekeeping in households or in the catering sector, and in particular is used to store food and / or drinks at certain temperatures, such as a refrigerator, a freezer, a fridge-freezer, a freezer or a wine cooler.

According to the present invention of the refrigeration device, the receiving housing comprises a first and a second housing shell. As a result, for example, the technical advantage is achieved that the receiving housing is formed in a simple manner and is able to receive the capacitor circumferentially.

In a further advantageous embodiment of the refrigeration device, the first and the second housing shell are connected with a hinge. This achieves the technical advantage, for example, that the two housing shells are rotatably connected to one another and, during an assembly process, the capacitor can be installed in a simple manner by closing the housing shells.

In a further advantageous embodiment of the refrigeration device, the hinge is a film hinge. This has the technical advantage, for example, that the hinge is produced with little technical effort and without the use of individual parts.

In a further advantageous embodiment of the refrigeration device, the receiving housing comprises a locking means for locking the first and the second housing shell. As a result, for example, the technical advantage is achieved that once a receiving housing has been closed, it cannot be opened easily and assembly is accelerated even further.

In a further advantageous embodiment of the refrigeration device, the first housing shell comprises a first part of an opening for inserting a cable and the second housing shell a second part of an opening for inserting the cable. This has the technical advantage, for example, that the cable to the capacitor can be laid in the receiving housing in a simple manner.

According to the present invention of the refrigeration device, the first housing shell and / or the second housing shell comprises spacer ribs on the inside for spacing the inserted capacitor from the inside of the receiving housing. This achieves the technical advantage, for example, that the capacitor is held at a distance from the inside of the receiving housing and that expansion of the capacitor is not hindered.

According to the present invention of the refrigeration device, the spacer ribs on the cable side of the condenser are arranged circumferentially on the inside of the receiving housing. As a result, for example, the technical advantage is achieved that that side of the capacitor to which the cable is attached is fixed immovably in the receiving housing.

In a further advantageous embodiment of the refrigeration device, the spacing ribs are arranged on the cordless side of the condenser on the inside in the longitudinal direction of the receiving housing. This has the technical advantage, for example, that the cordless side of the capacitor can expand in the longitudinal direction and is guided during the expansion.

In a further advantageous embodiment of the refrigeration device, the receiving housing has a cylindrical shape. As a result, for example, the technical advantage is achieved that the receiving housing can be formed with little material expenditure.

In a further advantageous embodiment of the refrigeration device, the receiving housing comprises an opening at one end of the cylindrical shape for inserting a power cable. This has the technical advantage, for example, that the power cable is led into the interior of the cylinder shape at a particularly suitable point.

In a further advantageous embodiment of the refrigeration device, the condenser is accommodated by the accommodating housing on a lateral surface of the condenser. This has the technical advantage, for example, that the capacitor is fixed in a stable manner by the receiving housing.

In a further advantageous embodiment of the refrigeration device, the receiving housing is a plastic housing. As a result, for example, the technical advantage is achieved that the receiving housing can be produced with technically simple means and is designed to be electrically insulating.

In a further advantageous embodiment of the refrigeration device, the receiving housing can be mounted on a mounting rail for a compressor. This achieves the technical advantage, for example, that the receiving housing can be mounted at a fixed distance from the compressor.

In a further advantageous embodiment of the refrigeration device, the receiving housing comprises a latching means for fastening the receiving housing on the support rail. As a result, for example, the technical advantage is achieved that quick assembly of the receiving housing is achieved.

Embodiments of the invention are shown in the drawings and are described in more detail below.

• Fig. 1 eine schematische Ansicht eines Kältegerätes;
• Fig. 2 eine Ansicht eines Aufnahmegehäuses in einem Kältegerät aus dem Stand der Technik das nicht unter dem Gegenstand der vorliegenden Anmeldung fällt;
• Fig. 3 ein aufgeklapptes Aufnahmegehäuse mit eingelegtem Kondensator gemäß der vorliegenden Erfindung;
• Fig. 4 ein aufgeklapptes und ein zugeklapptes Aufnahmegehäuse gemäß der vorliegenden Erfindung; und
• Fig. 5 eine Tragschiene mit dem Aufnahmegehäuse und einem Verdichter.

Show it:

• Fig. 1 a schematic view of a refrigeration device;
• Fig. 2 a view of a housing in a refrigeration device from the prior art that does not fall under the subject of the present application;
• Fig. 3 an opened housing with inserted capacitor according to the present invention;
• Fig. 4 an opened and a closed receiving housing according to the present invention; and
• Fig. 5 a mounting rail with the housing and a compressor.

Fig. 1 shows a refrigerator, representing a refrigeration device 100, with an upper refrigerator door and a lower refrigerator door. The refrigerator is used, for example, to cool food and comprises a refrigerant circuit with an evaporator, a compressor, a condenser and a throttle element. The evaporator is a heat exchanger in which the liquid refrigerant passes through after expansion Heat absorption from the medium to be cooled, ie the air inside the refrigerator, is evaporated.

The condenser is a heat exchanger in which, after compression, the evaporated refrigerant is transferred to an external cooling medium, i.e. the ambient air, is liquefied. The throttle device is a device for the constant reduction of the pressure by narrowing the cross-section.

The refrigerant is a fluid that is used for heat transfer in the refrigeration system, which absorbs heat at low temperatures and low pressure of the fluid and releases heat at higher temperature and higher pressure of the fluid, usually involving changes in state of the fluid.

The compressor is a mechanically operated component that sucks refrigerant vapor from the evaporator and expels it to the condenser at a higher pressure. An electrical condenser is used to operate the compressor, which limits the compressor's starting current.

Fig. 2 shows a view of a housing 127 in a refrigeration device 100. An electrical capacitor 105 for operating the compressor is housed in the housing 127. The capacitor 105 is attached to the receiving housing 127 on a cordless side with a thread 125. The capacitor 105 therefore expands towards its cable side. For this purpose, a free space 129 for a cable loop 123 is provided in the receiving housing 127. The cable loop 123 enables the capacitor 105 to expand without hindrance in the event of a fault. The cable loop 123 is laid manually by an employee during assembly on the assembly line. This approach slows down the production process.

Fig. 3 FIG. 10 shows a view of the capacitor 105 in a receiving housing 103. The capacitor 105 has a cable side 105-1 and a cordless side 105-2. On the cable side 105-1 there is a cable 117 for operating and supplying the capacitor 105. The housing 103 comprises a free space 109 for expanding the capacitor 105 on the cordless side 105-2 of the capacitor 105. The free space 109 is inside the Receiving housing 103 arranged. When heated, the capacitor 105 expands into the free space 109.

The capacitor 105 is fixed in the receiving housing 103 on the cable side 105-1. The capacitor 105 is therefore not attached to the thread, but rather received on the outer surface of the capacitor housing. In this case, the thread for fastening the capacitor 105 can be dispensed with, so that the cost of materials is reduced.

With this type of installation of the capacitor 105, a cable loop 123 can be dispensed with, since the capacitor 105 can expand in the lower wireless area and is fixed on the cable side 103-2. An expansion of the capacitor 105 in the event of a fault can therefore be made possible. By eliminating the cable loop 123, the associated assembly effort is saved.

The receiving housing 103 comprises two housing shells 103-1 and 103-2, which form two halves and are connected with a film hinge 111. The approval requirements are met by the geometric design of the housing 103. The receiving housing 103 is a plastic housing, so that the capacitor 105 does not need to be grounded, for example an injection-molded part.

The receiving housing 103 comprises a latching means 113 for latching the two housing shells 103-1 and 103-2. The locking means 113 is arranged in the center of the receiving housing 103. The first housing shell 103-1 comprises a resilient latching arm which, when folded together, engages over a latching projection in the other housing shell 103-2 and then engages. As a result, the housing 103 is automatically locked after it is folded.

Spacer ribs 119-1 and 119-2, on which the capacitor 105 rests and by which the capacitor 105 is spaced from the inner wall of the receiving housing 103, are formed in the interior of the receiving housing 103. The spacer ribs 119-1 and 119-2 protrude on the inside of the receiving housing 103. When the capacitor 105 is inserted, a gap is thus created between the inner wall of the receiving housing 103 and the outside of the capacitor 105.

The two lower spacer ribs 119-1 run around in the area of the cable side 105-1 of the capacitor 105 on the inside of the receiving housing 103. As a result, the capacitor 105 is clamped firmly between the two housing shells 103-1 and 103-2 on the cable side 105-1. In the area of the cordless side 105-2, the spacer ribs 119-2 run on the inside of the receiving housing 103 in the longitudinal direction. Through this Arrangement, the expansion of the capacitor 105 is not hindered by the longitudinal ribs 119-2 while the capacitor 105 is guided.

Fig. 4 shows an opened and a closed housing 103. The closed housing 103 has a cylindrical basic shape and surrounds the outer surface of the capacitor 105. In one housing shell 103-1 is part of an opening 115 for inserting a cable 117 and the second housing shell 103- 2, another part of an opening 115 for inserting the cable 117 is formed. After the two housing shells 103-1 and 103-2 have been folded together, the receiving housing 103 essentially has a cylindrical shape. The opening 115 is located in the region of the lower end of the cylinder shape. In addition, the receiving housing 103 comprises a mounting section 131 with which the receiving housing 103 can be attached to a mounting rail.

Fig. 5 shows a mounting rail 121 with the receiving housing 103 and a compressor 107. The mounting rail 121 is inserted into the refrigeration device 100 together with the compressor 107 and the receiving housing 103 during production. The mounting of the receiving housing 103 takes place, for example, by means of locking hooks with which a form fit is achieved, or a screw on the support rail 121.

The housing 103 with the capacitor 105 is mounted on the mounting rail 121 at a uniform distance from the compressor 107. Support rails 121 of different widths are also used for refrigeration devices 100 with different widths, for example from 600 mm to 860 mm. With a uniform distance between the compressor 107 and the receiving housing 103 arranged on the support rail 121, a uniform length of the cable 117 can be used. In this case, a uniform cable length can be used over an entire series of refrigeration devices 100. This results in a width-independent solution for accommodating the capacitor 105. The cost of materials is reduced and the assembly process is rationalized.

The capacitor 105 and the receiving housing 103 can be preassembled as an assembly. The receiving housing 103 enables easier assembly, since no cable loop 123 is laid during production. In addition, the receiving housing 103 has no cavity for the cable loop 123, so that the use of material is optimized. The construction of the capacitor 105 can be simplified since a nut and a threaded bolt on the capacitor 105 can be omitted. The receiving housing 103 can in Generally provided at any point in the refrigeration device, for example in the machine room.

All the features explained and shown in connection with individual embodiments of the invention can be provided in different combinations in the subject matter of the invention in order to simultaneously realize their advantageous effects.

The scope of protection of the present invention is given by the claims and is not restricted by the features explained in the description or shown in the figures.

REFERENCE LIST

100

Refrigeration device

103

Receiving housing

103-1

Housing shell

103-2

Housing shell

105

capacitor

105-1

Cable side

105-2

wireless side

107

compressor

109

free space

111

hinge

113

Locking means

115

opening

117

electric wire

119-1

Spacer ribs

119-2

Spacer ribs

121

Mounting rail

123

Cable loop

125

thread

127

Receiving housing

129

free space

Claims (12)

1. Refrigeration appliance (100) with a receiving housing (103), into which an electrical capacitor (105) is inserted, which has a cable side (105-1) and a cable free side (105-2), characterised in that the receiving housing (103) has a clearance (109) for extending the capacitor (105) on the cable free side (105-2) of the capacitor (105), wherein the receiving housing (103) comprises a first and a second housing shell (103-1), (103-2), wherein on the interior the first housing shell (103-1) and/or the second housing shell (103-1) comprises spacer fins (119-1, 119-2) for distancing the inserted capacitor (115) from the interior of the receiving housing (103), wherein the spacer fins (119-1) on the cable side (105-1) of the capacitor (105) are arranged so as to rotate around the interior of the receiving housing (103).
2. Refrigeration appliance (100) according to claim 1, characterised in that the first and the second housing shell (103-1), 103-2) are connected to a hinge (111).
3. Refrigeration appliance (100) according to claim 2, characterised in that the hinge (111) is an integral hinge.
4. Refrigeration appliance (100) according to one of claims 1 to 3, characterised in that the receiving housing (103) comprises a latching means (113) for latching the first and the second housing shell (103-1, 103-2).
5. Refrigeration appliance (100) according to one of claims 1 to 4, characterised in that the first housing shell (103-1) comprises a first part of an opening (115) for inserting a cable (117) and the second housing shell (103-2) comprises a second part of an opening (115) for inserting the cable (117).
6. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the spacer fins (119-2) on the cable free side (105-2) of the capacitor (105) are arranged on the interior in the longitudinal direction of the receiving housing (103).
7. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the receiving housing (103) has a cylinder shape.
8. Refrigeration appliance (100) according to claim 7, characterised in that at one end of the cylinder shape the receiving housing (103) has an opening (115) for inserting a power cable (117).
9. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the capacitor (105) is received by the receiving housing (103) on a lateral area of the capacitor (105).
10. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the receiving housing (103) is a plastic housing.
11. Refrigeration appliance (100) according to one of the preceding claims, characterised in that the receiving housing (103) can be assembled on a bearing rail (121) for a compressor (107).
12. Refrigeration appliance (100) according to claim 11, characterised in that the receiving housing (103) comprises a latching means for fastening the receiving housing (103) on the bearing rail (121).

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